Add future VIIRS and METimage satellites

[ninahakansson]

Add future satellites. For METimage I added only the OSCAR names and more updates will be needed later.

• [ ] Closes #xxxx
• [ ] Tests added
• [x] Tests passed: Passes pytest nwcsafpps_runner
• [x] Passes flake8 nwcsafpps_runner
• [ ] Fully documented

[codecov[bot]]

Codecov Report

Merging #58 (fd72701) into main (c7214fd) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main      #58   +/-   ##
=======================================
  Coverage   70.62%   70.62%           
=======================================
  Files          15       15           
  Lines        2192     2192           
  Branches      293      293           
=======================================
  Hits         1548     1548           
  Misses        602      602           
  Partials       42       42           

Flag	Coverage Δ
unittests	70.62% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
nwcsafpps_runner/l1c_processing.py	71.77% <ø> (ø)
nwcsafpps_runner/pps_posttroll_hook.py	85.05% <ø> (ø)
nwcsafpps_runner/tests/test_utils.py	100.00% <ø> (ø)
nwcsafpps_runner/utils.py	50.64% <100.00%> (ø)